ADHD Assessment in Swansea It can be difficult to determine ADHD. It is best to first speak with your GP and tell them why you think you have ADHD. They should consider you a serious case and refer you for assessment. There are long waiting periods for NHS ADHD tests, https://mental-health-assessment98890.life3dblog.com/28629874/why-everyone-is-talking-about-adhd-diagnosis-private-right-now